Net Abbreviations

All i pretty much know is...
LMAO:
laughing my ass off
LOL:
laughing out loud
OMG:
oh my god
AFK:
away from keeboard
BRB:
bee right back

I know there is tons of others but i cant figure them out what do they mean?

WTF:
What the fuck
ROTFLOL:
rolling on the floor laughin out loud
ROTFLMGDMFAO:
rolling on the floor laughing my god damn mother fucking ass off.
POS:
parents over shoulder
ASL:
age?sex?location?

thats all i can think of for now

Oh yeah forgot about the WTF.
Although i had no clue what in the world ROTFLOL OR ROTLMGDMFAO meant.
Thanks.
Do you know what MFSOAB means?
Someone said it meant Mother Fucken Son Of A Bitch.

rtfm - read the fucking manual

pebkac - problem exists between keyboard and chair

FU is kind of self explanatory.
POS i have only heard on movies.
I like the PEBKAC and RTFM one.

they tend to be internet help forum or general bitching from tech help.

added to the list though not quite fitting

*{insert verb here}* - indicates an action

i made ROTFLMGDMFAO up.but i do use it every now and again.if i feel like typing it that is.

and ive never heard of rtfm or pebkac,but their interesting.POS i got from a family oriented site,so it wouldent mean peice of shit there.

alot of words you can just add MF or GD to to make something like OMMFG or LMGDAO.i see them all the time

ive got one.. yt?- you there?

Heres some more i forgot about
TY
thank you
SYL
see you later

atm- at the moment
sry -sorry